It fits into the corners of the bottom of the bottle, and its special abrasive particles remove tea and coffee stains.
Crescent Wall Hybrid 3-layer laminated sponge color: gray
Length (mm): 335
Width (mm): 40
Thickness (mm): 33
Shape: Easy to fit into the corners of the bottle bottom
Length (mm): 300
Material/Finish: Replaceable sponge
Country of Origin: Japan
Code number: 207-2417
